| 1 |
All the food chains are joined together to form ..... |
- A. Food web
- B. Ecologicla pyramid
- C. Tropicla level
- D. None of these
|
| 2 |
Which fo these is NOT a genetic variation. |
- A. Attached earlobes
- B. Blood group
- C. Eye colour
- D. Mark of cut on skin
|
| 3 |
Speed of light through glass is about. |
- A. 300000 km /s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km/s
|
| 4 |
The unit of electric power is |
- A. Ampere
- B. Joule
- C. Volt
- D. Watt
|
| 5 |
The relation R = V/I is discovered by a |
- A. American scientist
- B. German scientist
- C. British Scientis
- D. Russian scientist
|
| 6 |
The section of DNA which has information for making a specific protein is called. |
- A. DNA strand
- B. Nucleotide
- C. Chromosomes
- D. Gene
|
| 7 |
Consumers that actively hunt other organism are called. |
- A. Prey
- B. Competitor
- C. Predator
- D. Symbiont
|
| 8 |
Half of the increase in atmospheric carbon dioxide concentrations in the last.............. years has occured since 1980 |
- A. 100
- B. 200
- C. 300
- D. 400
|
| 9 |
The nearest star after the Sun is. |
- A. Rigel
- B. Sirius
- C. Aldebaran
- D. Proxima Centaure
|
| 10 |
The formula of find the magnitude of current is. |
- A. I = Q/t
- B. I = QV
- C. I = CV
- D. I = C/Q
|